CVE-2026-4496

A vulnerability was found in sigmade Git-MCP-Server up to 785aa159f262a02d5791a5d8a8e13c507ac42880. Affected by this vulnerability is the function child_process.exec of the file src/gitUtils.ts of the component show_merge_diff/quick_merge_summary/show_file_diff. The manipulation results in os command injection. The attack must be initiated from a local position. The exploit has been made public and could be used. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. It is advisable to implement a patch to correct this issue. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3 5.3 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 3.1 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/sigmade/Git-MCP-Server/
https://github.com/sigmade/Git-MCP-Server/issues/1
https://github.com/sigmade/Git-MCP-Server/pull/2
https://github.com/user-attachments/files/24855745/Git-MCP-Server.bug.pdf
https://vuldb.com/?ctiid.352045
https://vuldb.com/?id.352045
https://vuldb.com/?submit.773796

Configurations

No configuration.

History

20 Mar 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-20 19:16

Updated : 2026-03-24 15:54

NVD link : CVE-2026-4496

Mitre link : CVE-2026-4496

CVE.ORG link : CVE-2026-4496

JSON object : View

Products Affected

No product.

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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